TV set base with a supporting and a retracted state

ABSTRACT

In one aspect, a TV set is provided. A base includes two supporting mounts. One end of the first supporting mount is rotatably connected with a back side of a display screen assembly. The second supporting mount includes two supporting arms symmetrically disposed on two sides of the first supporting mount. One end of each supporting arm is rotatably connected with the first supporting mount respectively at a rotatory connection point. When the base is in a supporting state, for each supporting arm, a triangular supporting structure is formed by the rotatory connection point, the other end of the first supporting mount, and the other end of the supporting arm. When the base is in a retracted state, the first supporting mount is attached to the back side of the display screen assembly, and the second supporting mount is superimposed on an outer side wall of the first supporting mount.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority to Chinese Patent Application No.201320594287.6, filed on Sep. 25, 2013 and Chinese Patent ApplicationNo. 201310653488.3, filed on Dec. 6, 2013, in the State IntellectualProperty Office of P.R. China, the disclosures of which are herebyincorporated herein in their entireties by reference.

FIELD OF THE INVENTION

The present invention relates to electronic product technology, and moreparticularly to a TV set.

BACKGROUND OF THE INVENTION

An existing TV set (e.g., a flat-panel TV set) may be stably supportedon a table top (e.g., a TV cabinet table top) through a base mounted ata lower portion of the TV set. When the TV set is required to be hung ona wall, the base needs to be removed aside. The base of the TV set isonly a stressed component, which only plays a role of supporting adisplay screen assembly of the TV set. In actual implementations, whenthe TV set is supported on a table top or hung on a wall, the base needsto be mounted on or removed from the TV set. The mounting and removalprocedures of the base are time-consuming and laborious, and the base isprone to be damaged.

Further, in the existing TV set, the display screen assembly becomesthinner, and components such as a speaker assembly, a circuit module anda terminal are mounted on the display screen assembly. A loudspeaker ofthe speaker assembly is designed in a manner of generating soundbackwards or downwards, which leads to certain requirements for thethickness of the display screen assembly. Further, the directivity ofthe sound becomes stronger when the frequency of the sound becomeshigher. The backward or downward generating manner of sound may causereduction of mid-range and treble sounds received directly in front ofthe TV set, resulting in dry sounds and poor sound quality.

Therefore, a heretofore unaddressed need exists in the art to addressthe aforementioned deficiencies and inadequacies.

SUMMARY OF THE INVENTION

Aspects of the present invention direct to a TV set, which intends tosolve the technical deficiencies that a base of the existing TV setneeds to be mounted and removed, which is time-consuming and laborious,and the base is prone to be damaged.

One aspect of the present invention relates to a TV set, which includesa display screen assembly and a base disposed at a lower portion of thedisplay screen assembly, where the base includes a first supportingmount and a second supporting mount;

a first end of the first supporting mount is rotatably connected with aback side of the display screen assembly;

the second supporting mount comprises two supporting arms symmetricallydisposed on two sides of the first supporting mount, wherein a first endof each of the two supporting arms is respectively rotatably connectedwith the two sides of the first supporting mount at a rotatoryconnection point;

when the base is in a supporting state, a first fixed angle is formedbetween the first supporting mount and the display screen assembly, asecond fixed angle is formed between the second supporting mount and thefirst supporting mount, a second end of each of the two supporting armsis respectively positioned at a lower front of the display screenassembly, and the lower portion of the display screen assembly abuts thetwo supporting arms, where a second end of the first supporting mountand the second ends of the two supporting arms are supported on a tabletop, and for each of the two supporting arms, a triangular supportingstructure is formed by the rotatory connection point rotatably connectedwith the first supporting mount, the second end of the first supportingmount, and the second end of the supporting arm; and

when the base is in a retracted state, the first supporting mount isattached to the back side of the display screen assembly, and the secondsupporting mount is superimposed on an outer side wall of the firstsupporting mount.

According to the TV set in one aspect of the present invention, thefirst end of the first supporting mount is rotatably connected with theback side of the display screen assembly, and the first ends of the twosupporting arms of the second supporting mount are rotatably connectedwith the two sides of the first supporting mount respectively. When thebase is in a supporting state, the first supporting mount and thedisplay screen assembly form a fixed angle, the second supporting mountand the first supporting mount form a fixed angle, a second end of eachof the two supporting arms is respectively positioned at a lower frontof the display screen assembly, the lower portion of the display screenassembly abuts the two supporting arms, and a second end of the firstsupporting mount and the second ends of the two supporting arms aresupported on a table top. When the base is in a retracted state, thefirst supporting mount is attached to the back side of the displayscreen assembly, and the second supporting mount is superimposed on theouter side of the first supporting mount. Thus, the base may beswitchable between the two states for being supported on a table top andbeing hung on a wall without being removed from the TV set. Comparedwith the conventional technology, adjustment of the base saves time andeffort, and the base is not easily damaged, thereby improving thequality of the TV set. Moreover, when the base of the TV set is in theretracted state, the second supporting mount is superimposed on theouter side wall of the first supporting mount, and in the thicknessdirection of the TV set, a two-layer structure of the display screenassembly and the first supporting mount is formed, thus achieving athinner structure of the TV set in the hung state when the base isretracted.

These and other aspects of the invention will become apparent from thefollowing description of the preferred embodiment taken in conjunctionwith the following drawings, although variations and modificationstherein may be effected without departing from the spirit and scope ofthe novel concepts of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings illustrate one or more embodiments of thedisclosure and together with the written description, serve to explainthe principles of the disclosure. Wherever possible, the same referencenumbers are used throughout the drawings to refer to the same or likeelements of an embodiment.

FIG. 1 is a schematic front view of the structure of a TV set accordingto one embodiment of the present invention;

FIG. 2 is a schematic cross-sectional right view of a partial structureof the TV set as shown in FIG. 1 when a base is in a retracted stateaccording to one embodiment of the present invention;

FIG. 3 is a schematic left view of the structure of the TV set as shownin FIG. 1 when the base is in a supporting state according to oneembodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a partial structure of theTV set as shown in FIG. 3 according to one embodiment of the presentinvention;

FIG. 5 is a schematic right view of the structure of the TV set as shownin FIG. 1 when the base is in a supporting state according to oneembodiment of the present invention;

FIG. 6 is a schematic view of the structure of a second supporting mountof the TV set as shown in FIG. 3 according to one embodiment of thepresent invention;

FIG. 7 is a schematic view of the structure of a first supporting mountin the TV set as shown in FIG. 3 according to one embodiment of thepresent invention;

FIG. 8 is a schematic view of a partial structure in which the firstsupporting mount and the second supporting mount are rotatably connectedaccording to one embodiment of the present invention;

FIG. 9 is a schematic view of the structure of a first stop washer asshown in FIG. 8 according to one embodiment of the present invention;

FIG. 10 is a schematic view of a partial structure in which a displayscreen assembly is rotatably connected with the second supporting mountaccording to one embodiment of the present invention;

FIG. 11 is a schematic view of the structure of a second stop washer asshown in FIG. 10 according to one embodiment of the present invention;

FIG. 12 is a schematic view of the structure of a rotating shaft bracketas shown in FIG. 10 according to one embodiment of the presentinvention;

FIG. 13 is a schematic view of the structure of a pin shaft of the TVset as shown in FIG. 3 according to one embodiment of the presentinvention;

FIG. 14 is a schematic view of a partial structure in which the base isrotatably connected with the display screen assembly according to oneembodiment of the present invention;

FIG. 15 is a schematic view of the structure of a TV set according toanother embodiment of the present invention; and

FIG. 16 is a schematic view of the structure of a TV set according to afurther embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The invention will now be described more fully hereinafter withreference to the accompanying drawings, in which exemplary embodimentsof the invention are shown. This invention may, however, be embodied inmany different forms and should not be construed as limited to theembodiments set forth herein. Rather, these embodiments are provided sothat this disclosure will be thorough and complete, and will fullyconvey the scope of the invention to those skilled in the art. Likereference numerals refer to like elements throughout.

The terms used in this specification generally have their ordinarymeanings in the art, within the context of the invention, and in thespecific context where each term is used. Certain terms that areconfigured to describe the invention are discussed below, or elsewherein the specification, to provide additional guidance to the practitionerregarding the description of the invention. For convenience, certainterms may be highlighted, for example using italics and/or quotationmarks. The use of highlighting has no influence on the scope and meaningof a term; the scope and meaning of a term is the same, in the samecontext, whether or not it is highlighted. It will be appreciated thatsame thing can be said in more than one way. Consequently, alternativelanguage and synonyms may be used for any one or more of the termsdiscussed herein, nor is any special significance to be placed uponwhether or not a term is elaborated or discussed herein. Synonyms forcertain terms are provided. A recital of one or more synonyms does notexclude the use of other synonyms. The use of examples anywhere in thisspecification including examples of any terms discussed herein isillustrative only, and in no way limits the scope and meaning of theinvention or of any exemplified term. Likewise, the invention is notlimited to various embodiments given in this specification.

It will be understood that, although the terms first, second, third etc.may be used herein to describe various elements, components, regions,layers and/or sections, these elements, components, regions, layersand/or sections should not be limited by these terms. These terms areonly configured to distinguish one element, component, region, layer orsection from another element, component, region, layer or section. Thus,a first element, component, region, layer or section discussed belowcould be termed a second element, component, region, layer or sectionwithout departing from the teachings of the disclosure.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of the invention. Asused herein, the singular forms “a”, “an” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise. It will be further understood that the terms “comprises”and/or “comprising”, or “includes” and/or “including” or “has” and/or“having” when used in this specification, specify the presence of statedfeatures, regions, integers, steps, operations, elements, and/orcomponents, but do not preclude the presence or addition of one or moreother features, regions, integers, steps, operations, elements,components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art to which this invention belongs. It will befurther understood that terms, such as those defined in commonly useddictionaries, should be interpreted as having a meaning that isconsistent with their meaning in the context of the relevant art and theinvention, and will not be interpreted in an idealized or overly formalsense unless expressly so defined herein.

As used herein, “around”, “about” or “approximately” shall generallymean within 20 percent, preferably within 10 percent, and morepreferably within 5 percent of a given value or range. Numericalquantities given herein are approximate, meaning that the term “around”,“about” or “approximately” can be inferred if not expressly stated.

As used herein, the terms “comprising,” “including,” “having,”“containing,” “involving,” and the like are to be understood to beopen-ended, i.e., to mean including but not limited to.

As used herein, the term “unit”, “module” or “submodule” may refer to,be part of, or include an Application Specific Integrated Circuit(ASIC); an electronic circuit; a combinational logic circuit; a fieldprogrammable gate array (FPGA); a processor (shared, dedicated, orgroup) that executes code; other suitable hardware components thatprovide the described functionality; or a combination of some or all ofthe above, such as in a system-on-chip. The term unit, module orsubmodule may include memory (shared, dedicated, or group) that storescode executed by the processor.

The description will be made as to the embodiments of the invention inconjunction with the accompanying drawings in FIGS. 1-16. It should beunderstood that specific embodiments described herein are merely usedfor explaining the invention, but are not intended to limit theinvention. In accordance with the purposes of this disclosure, asembodied and broadly described herein, this invention, in one aspect,relates to a TV set.

FIG. 1 is a schematic front view of the structure of a TV set accordingto one embodiment of the present invention. FIG. 2 is a schematiccross-sectional right view of a partial structure of the TV set as shownin FIG. 1 when a base is in a retracted state according to oneembodiment of the present invention. FIG. 3 is a schematic left view ofthe structure of the TV set as shown in FIG. 1 when the base is in asupporting state according to one embodiment of the present invention.FIG. 4 is a schematic cross-sectional view of a partial structure of theTV set as shown in FIG. 3 according to one embodiment of the presentinvention. FIG. 5 is a schematic right view of the structure of the TVset as shown in FIG. 1 when the base is in a supporting state accordingto one embodiment of the present invention. Referring to FIGS. 1-5, theTV set provided in this embodiment includes a display screen assembly 11and a base 12 disposed at a lower portion of the display screen assembly11. The base 12 includes a first supporting mount 121 and a secondsupporting mount 122. A first end of the first supporting mount 121 isrotatably connected with a back side of the display screen assembly 11.The second supporting mount 122 includes two supporting armssymmetrically disposed on two sides of the first supporting mount 121,and a first end of each of the two supporting arms is respectivelyrotatably connected with the two sides of the first supporting mount 121at a rotatory connection point. In certain embodiments, the supportingarm may have an elongated structure, such as a long cylindricalstructure or a rectangular bar structure.

When the base 12 is in a supporting state (as shown in FIG. 3), a firstfixed angle is formed between the first supporting mount 121 and thedisplay screen assembly 11, and a second fixed angle is formed betweenthe second supporting mount 122 and the first supporting mount 121. Asecond end of each of the two supporting arms is respectively positionedat a lower front of the display screen assembly 11, and the lowerportion of the display screen assembly 11 abuts the two supporting arms.A second end of the first supporting mount 121 and the second ends ofthe two supporting arms are supported on a table top. For each of thetwo supporting arms, a triangular supporting structure is formed by therotatory connection point rotatably connected with the first supportingmount 121, the second end of the first supporting mount 121, and thesecond end of the supporting arm.

When the base 12 is in a retracted state (as shown in FIG. 2), the firstsupporting mount 121 is attached to the back side of the display screenassembly 11, and the second supporting mount 122 is superimposed on anouter side wall of the first supporting mount 121. In this case, thefirst supporting mount 121 is received between the two supporting arms,and the first supporting mount 121 and the second supporting mount 122form a single layer structure.

In this embodiment, the base 12 is a separate foldable structure. Thefirst end of the first supporting mount 121 is an upper end as shown inFIGS. 1-5. There are various implementations that the first end of thefirst supporting mount 121 may be rotatably connected with the back sideof the display screen assembly 11, e.g., by being hinged through a pinshaft. Further, there are various implementations that a first end ofthe second supporting mount 122 may be rotatably connected with thefirst supporting mount 121. When the base 12 is in the supporting state,a second end (the lower end) of the first supporting mount 121 may besupported on the table top, and a second end of the second supportingmount 122 may be supported on the table top. A lower end of the displayscreen assembly 11 may be supported on the two supporting arms of thesecond supporting mount 122. In this case, the TV set may be supportedon the table top by the base 12. When the base 12 is in the retractedstate, the first supporting mount 121 and the second supporting mount122 may be superimposed on the back side of the display screen assembly11, and the TV set may be hung on a wall.

According to the TV set as provided in this embodiment, the first end ofthe first supporting mount is rotatably connected with the back side ofthe display screen assembly, and the first ends of the two supportingarms of the second supporting mount are rotatably connected with the twosides of the first supporting mount respectively. When the base is in asupporting state, the first supporting mount and the display screenassembly form a fixed angle, the second supporting mount and the firstsupporting mount form a fixed angle, a second end of each of the twosupporting arms is respectively positioned at a lower front of thedisplay screen assembly, the lower portion of the display screenassembly abuts the two supporting arms, and a second end of the firstsupporting mount and the second ends of the two supporting arms aresupported on a table top. When the base is in a retracted state, thefirst supporting mount is attached to the back side of the displayscreen assembly, and the second supporting mount is superimposed on theouter side of the first supporting mount. Thus, the base may beswitchable between the two states for being supported on a table top andbeing hung on a wall without being removed from the TV set. Comparedwith the conventional technology, adjustment of the base saves time andeffort, and the base is not easily damaged, thereby improving thequality of the TV set. Moreover, when the base of the TV set is in theretracted state, the second supporting mount is superimposed on theouter side wall of the first supporting mount, and in the thicknessdirection of the TV set, a two-layer structure of the display screenassembly and the first supporting mount is formed, thus achieving athinner structure of the TV set in the hung state when the base isretracted.

Based on the above embodiment, as shown in FIGS. 1-6, in certainembodiments, the second supporting mount 122 may be a U-shaped bracket,and the two supporting arms may be two vertical arms of the U-shapedbracket. A front end of each of the two vertical arms of the U-shapedbracket may be respectively rotatably connected with the two sides ofthe first supporting mount 121. When the base 12 is in the retractedstate, the first supporting mount 121 and the second supporting mount122 are superimposed, and the first supporting mount 121 is received inthe U-shaped bracket. In other words, the first supporting mount 121 ispositioned in a frame structure enclosed by the U-shaped bracket.

In the above embodiment, the second supporting mount 122 is formed intoa U-shaped bracket, and two ends of the U-shaped bracket are rotatablyconnected with the first supporting mount 121. The rotatable connectingstructure is simple and easy for manufacturing purposes. When the firstsupporting mount 121 and the second supporting mount 122 aresuperimposed, the first supporting mount 121 is positioned in a framestructure enclosed by the U-shaped bracket. Thus, after thesuperimposition, the base 12 of the TV set has a pleasant view and acompact size, and at the front view of the base, no apparent gap can beobserved when the first supporting mount 121 and the second supportingmount 122 are superimposed.

In certain embodiments, the second supporting mount 122 may be formed inother shapes. For example, the two supporting arms of the secondsupporting mount 122 may be two L-shaped arms, and a front end of avertical arm of each of the two L-shaped arms may be rotatably connectedwith the first supporting mount 121.

As discussed above, the base 122 may be positioned in two states, andone of the states is a retracted (folded) state. As shown in FIG. 2, thesecond supporting mount 122 may be a U-shaped bracket, the firstsupporting mount 121 and the second supporting mount 122 are folded, andthe first supporting mount 121 is received in a frame structure enclosedby the U-shaped bracket. After the base 12 is folded, the TV set in thisembodiment is in the retracted state, and the TV set forms a two-layerstructure of the display screen assembly 11 and the first supportingmount 121 in the thickness direction, thus achieving a thinner structureof the TV set in the hung state when the base is retracted.

The other state of the base 122 is a supporting state. As shown in FIG.3, the display screen assembly 11 may be vertically supported on thesecond supporting mount 122. The first supporting mount 121 and thedisplay screen assembly 11 form a fixed angle, a second end of the firstsupporting mount 121 is supported on a table top, and a stabletriangular supporting structure is formed by the first supporting mount121, the second supporting mount 122 and the display screen assembly.The second supporting mount 122 and the first supporting mount 121 forma fixed angle, and a stable triangular supporting structure is formed bythe first supporting mount 121, the second supporting mount 122 and thetable top.

As shown in FIG. 3, the switching process of the base 12 from thesupporting state to the retracted state is described as follows. First,the first supporting mount 121 rotates in a counterclockwise directionto be attached to the back side of the display screen assembly 11. Then,the second supporting mount 122 rotates in a clockwise direction to befolded together with the first supporting mount 121.

Further, as shown in FIG. 3, the front ends of the two vertical arms ofthe U-shaped bracket may be rotatably connected with the two sides ofthe second end of the first supporting mount 121 through a firstrotating shaft 1211. As shown in FIG. 6, a front end of the U-shapedbracket is provided with a first shaft hole 1221, and the first rotatingshaft 1211 is fixedly disposed in the first shaft hole 1221. The firstsupporting mount 121 is provided with a through hole (not shown)corresponding to the first shaft hole, and the first rotating shaft 1211penetrates the through hole in the first supporting mount 121. The firstrotating shaft 1211 is fixedly provided with a first stop washer 13 (asshown in FIG. 8).

As shown in FIG. 9, the first stop washer 13 is provided with a firstgroove 131, and as shown in FIG. 8, the first supporting mount 121 isfixedly provided with a first protruding block 1222 near an outer edgeof the through hole. In another embodiment, the first stop washer may befixedly provided with the first protruding block may be fixedly providedon the first stop washer, and the first groove may be provided on thefirst supporting mount. The first protruding block fits with the firstgroove to define a rotation angle of the U-shaped bracket.

Specifically, in certain embodiments, the first rotating shaft 1211 mayinclude a threaded segment and a connecting segment, and across-sectional shape of the connecting segment is D-shaped orrectangular. In this embodiment, the connecting segment has acylindrical structure and is symmetrically provided with two plainsurfaces along an axial direction. A cross-sectional shape of the firstshaft hole 1221 corresponds to the cross-sectional shape of theconnecting segment, and the connecting segment is fixedly disposed inthe first shaft hole 1221. The first stop washer 13 has a mounting hole132 corresponding to the cross-sectional shape of the connecting segmentof the first rotating shaft 1211, and the first stop washer 13 isfixedly mounted on the connecting segment. The first protruding block1222 is embedded in the first groove 131, and the first stop washer 13and the first rotating shaft 1211 rotate along with the U-shapedbracket, such that the first protruding block 1222 defines a rotationangle of the first stop washer 13, thereby defining the rotation angleof the U-shaped bracket.

The first groove 131 may limit the position of the first protrudingblock 1222 such that the first protruding block 1222 moves in the firstgroove 131 according to a particular track. When the first protrudingblock 1222 moves to an extreme position, the first groove 131 restrictsthe first protruding block 1222 to ensure that the base 12 stablysupports the display screen assembly 11 on the table top.

In certain embodiments, preferably, the first groove 131 may be a groove(see FIG. 9) circumferentially disposed along the first rotating shaft1211 with a central angle α of 274°.

Further, in certain embodiments, an outer side of the first stop washer13 disposed on the first rotating shaft 1211 may be threaded with afirst nut 14, and a first butterfly washer 15 is sleeved between thefirst nut 14 and the first stop washer 13. The first nut 14 and thefirst rotating shaft 1211 may rotate together, and the first butterflywasher 15 may produce constant damping by means of elastic deformationand may enhance the comfort in operation. However, damping is notrequired for the structure of the rotating portions. Thus, in oneembodiment, the first butterfly washer 15 may be omitted. In anotherembodiment, the first butterfly washer 15 and the first nut 14 may besleeved with a lock washer therebetween to prevent the first nut 14 fromgetting loose during rotation.

In certain embodiment, the central angle α of the first groove 131disposed along an axis of the first rotating shaft 1211 as described inthis embodiment may be designed to have other values, such as 280° or270°. These variations and embodiments may achieve the objective of thepresent invention with the purposes thereof not departed from the designidea of the present invention, and they should fall within theprotection scope of the invention.

Based on the above embodiment, as shown in FIGS. 7, 10, 11, 12 and 15,in certain embodiments, a mounting bracket 16 may be fixedly provided onthe back side of the display screen assembly 11, and a second rotatingshaft 17 is fixedly provided on the mounting bracket 16. The firstsupporting mount 121 is fixedly provided with a rotating shaft bracket18 sleeved on the second rotating shaft 17. The second rotating shaft 17is fixedly provided with a second stop washer 19, and the second stopwasher 19 is disposed at an outer side of the rotating shaft bracket 18.The second stop washer 19 is provided with a second groove 191, and therotating shaft bracket 18 is provided with a second protruding block181. In another embodiment, the second protruding block may be providedon the second stop washer, and the second groove may be provided on therotating shaft bracket. The rotating shaft bracket 18 rotates along withthe first supporting mount 121, and the second protruding block 181 fitswith the second groove 191 to define a rotation angle of the firstsupporting mount 121. FIGS. 7 and 15 respectively illustrate twodifferent structures of the first supporting mount 121.

Specifically, in certain embodiments, the second rotating shaft 17 mayinclude a threaded segment and a connecting segment, and across-sectional shape of the connecting segment is D-shaped orrectangular. In this embodiment, the connecting segment has acylindrical structure and is symmetrically provided with two plainsurfaces along an axial direction. A cross-sectional shape of a shafthole of the mounting bracket 16 corresponds to the cross-sectional shapeof the connecting segment, and the connecting segment is fixedlydisposed in the shaft hole in the mounting bracket 16. The second stopwasher 19 has a mounting hole 192 corresponding to the cross-sectionalshape of the connecting segment, and the second stop washer 19 isfixedly mounted on the connecting segment.

The second protruding block 181 is embedded in the second groove 191,and the rotating shaft bracket 18 rotates along with the firstsupporting mount 121, such that the second protruding block 181 definesa rotation angle of the rotating shaft bracket 18, thereby defining therotation angle of the first supporting mount 121.

In this embodiment, the mounting bracket 16 is provided on the back sideof the display screen assembly 11, the two ends of the mounting bracket16 in a horizontal direction are each fixedly provided with a secondrotating shaft 17, and the distances of the two second rotating shafts17 to the back side of the display screen assembly 11 are the same suchthat the two second rotating shafts 17 are disposed linearly, thusensuring that the base 12 stably supports the display screen assembly 11on the table top when the base is in the supporting state. The rotatingshaft bracket 18 is mounted on the first supporting mount 121 at aposition corresponding to the second rotating shaft 17, and the rotatingshaft bracket 18 is sleeved on the second rotating shaft 17. Therefore,the rotatable connecting structure is simple and easy for manufacturingpurposes, and the rotatable connection is reliable. The second groove191 may limit the position of the second protruding block 181 such thatthe second protruding block 181 moves in the second groove 191 accordingto a particular track. When the second protruding block 181 moves to anextreme position, the second groove 191 restricts the second protrudingblock 181 to ensure that the base 12 stably supports the display screenassembly 11 on the table top. In certain embodiments, preferably, thesecond groove 191 is a groove circumferentially disposed along thesecond rotating shaft 17 with a central angle β of 20°. Further, incertain embodiments, an inner side of the rotating shaft bracket 18 onthe second rotating shaft 17 is further provided with a second nut 20,and the second nut 20 is threaded on the connecting segment of thesecond rotating shaft 17. Further, a second butterfly washer 21 issleeved between the second nut 20 and the rotating shaft bracket 18, andthe mounting bracket 16 at an outer side of the second rotating shaft 17is provided with a decorative end cap 22.

The second lock nut 20 and the second rotating shaft 17 may rotatetogether, and the second butterfly washer 21 may produce constantdamping by means of elastic deformation and may enhance the comfort inoperation. However, damping is not required for the structure of therotating portions. Thus, in one embodiment, the second butterfly washer21 may be omitted. In another embodiment, the second butterfly washer 21and the second nut 20 may be sleeved with a lock washer 211 therebetweento prevent the second nut 20 from getting loose during rotation.

In certain embodiment, the central angle α of the first groove 131disposed along an axis of the first rotating shaft 1211 as described inthis embodiment may be designed to have other values, such as 280° or270°. These variations and embodiments may achieve the objective of thepresent invention with the purposes thereof not departed from the designidea of the present invention, and they should fall within theprotection scope of the invention.

In certain embodiment, the central angle of the second groove 191disposed along an axial direction of the second rotating shaft 17 asdescribed in this embodiment may be designed to have other values, suchas 25° or 30°. These variations and embodiments may achieve theobjective of the present invention with the purposes thereof notdeparted from the design idea of the present invention, and they shouldfall within the protection scope of the invention.

Based on the above embodiment, as shown in FIGS. 5, 6, 13 and 14, incertain embodiments, each of the two vertical arms of the U-shapedbracket is respectively provided with a pin shaft hole 1223, and thelower portion of the display screen assembly 11 is provided with pinshafts 111. When the lower portion of the display screen assembly 11 issupported on the U-shaped bracket, each of the pin shafts 111 isrespectively inserted into the corresponding pin shaft hole 1223. Incertain embodiments, each of the pin shafts 111 is provided with arotating stem 112, and the display screen assembly 11 is furtherprovided with a magnet (not shown). When the pin shaft 111 is pulled outfrom the corresponding pin shaft hole 1223, the magnet attracts therotating stem 112. In this embodiment, the limiting structure of the pinshaft 111 and the pin shaft hole 1223 may be used to increase thestability for supporting the TV set. When the base 12 is unfolded toswitch to the supporting state, each of the pin shafts 111 may berotated by 90° and inserted in the corresponding pin shaft hole 1223 inthe U-shaped bracket so as to be limited therein. When the TV set ishung on a wall, each of the pin shafts 111 may be rotated by 90° in areversed direction, and the magnet mounted on the display screenassembly 11 may attract the pin shafts 111 such that the pin shafts 111are be exposed from the TV set. In certain embodiments, a spring may beused to replace the magnet. When a spring is used, each of the pinshafts 111 extends and is inserted into the corresponding pin shaft hole1223 under the tension of the spring. When the TV set is hung, the pinshafts 111 retract and respectively rotate by 90° under a thrust suchthat the rotating stem 112 is retained at the back side of the displayscreen assembly 11.

In this embodiment, the display screen assembly 11 is fixed through thepin shaft 111 and the pin shaft hole 1223. Thus, the first stop washer13 and the first protruding block 1222 in the above embodiment can beomitted, and the rotation amplitude of the second supporting mount 122may be unrestricted. When the base is in the supporting state, thedisplay screen assembly 11 can be reliably and stably fixed on the tabletop as long as the pin shafts 111 on the display screen assembly 11 arefixed in the corresponding pin shaft holes 1223 on the U-shaped bracket.

Further, based on the above embodiment, as shown in FIGS. 2-4, incertain embodiments, the TV set may further include a speaker assemblydisposed on the first supporting mount 121. The speaker assembly maygenerate sound towards a front side of the TV set. Specifically, thespeaker assembly may be disposed at a position near the lower portion ofthe first supporting mount 121. When the base is in the retracted state,the lower portion of the first supporting mount 121 extends beyond alower edge of the display screen assembly 11, and a loudspeaker 1215 ofthe speaker assembly faces towards a front side of the display screenassembly 11.

When the base is in the supporting state, the loudspeaker 1215 of thespeaker assembly faces towards the front side of the display screenassembly 11, and sound waves generated by the loudspeaker 1215 aretransmitted toward the front of the display screen assembly 11 through agap between the display screen assembly 11 and the table top. In certainembodiments, the TV set may further include a circuit module and aterminal 24. The circuit module and the terminal 24 are both disposed onthe first supporting mount 121, and the circuit module is electricallyconnected with the display screen assembly 11.

Referring to FIG. 2, when the TV set is in the hung state, theloudspeaker 1215 is disposed in the first supporting mount 121, and asound outlet of the loudspeaker 1215 extends to a position below thedisplay screen assembly 11. Thus, the loudspeaker 1215 generates sounddirectly forwards, and the sound waves travel directly towards a viewerposition in front of the display screen assembly 11, thus reducingattenuation of the sound pressure.

When the TV set is supported by the bracket, further referring to FIG.3, the second supporting mount 122 is connected with the firstsupporting mount 121 through the first rotating shaft 1211 disposed onthe first supporting mount 121. Thus, a triangular structure is formedby the first rotating shaft 1211, a supporting point between the firstsupporting mount and the table top, and a supporting point between thesecond supporting mount and the table top. The display screen assemblyis maintained in a vertical state by inserting the pin shafts 111 intothe corresponding pin holes 1223 of the second supporting mount 122,such that the display screen assembly 11 is suspended above and awayfrom the table top. In this way, the loudspeaker 1215 may also generatesound directly forwards, and the sound waves travel directly toward theviewer position through a gap between the table top and the displayscreen suspended thereabove, thereby improving the sound effects.

In certain embodiments, preferably, as shown in FIG. 4, the lowerportion of the first supporting mount 121 may be provided with a footpad 1217. The foot pad 1217 may be movably retracted into the firstsupporting mount 121 by the tension of a spring. When the second bracket122 is rotated to a support angle, the second supporting mount 122 isprovided with a protruding block, and the foot pad 1217 extends out ofthe first supporting mount 121 under a thrust of the protruding block.

By providing the foot pad 1217 at the lower portion of the firstsupporting mount 121, the foot pad 1217 may be prevented from directlycontacting with the table top and scratching the table top (e.g., a TVcabinet table top). Further, the TV set may be more stably supported onthe table top.

In the TV set provided in this embodiment, the speaker assembly, thecircuit module and the terminal 24 are removed from the inside of thedisplay screen assembly and are mounted on the base, thereby furtherreducing the thickness of the display screen assembly 11. Moreover, thespeaker assembly may be designed in a manner of generating sound towardsthe front side after being mounted on the base. Thus, better mid-rangeand treble sounds may be received directly in front of the TV set, whichavoids dry sounds and ensures better sound effects.

It should be noted that the speaker assembly may perform signaltransmission with the TV set by a wired connection or a wirelessconnection.

Further, as shown in FIGS. 2 and 4, the first supporting mount 121 mayinclude a front shell 1212, a rear shell 1213 and a frame 1214. Thefront shell 1212 and the rear shell 1213 are mounted on the frame 1214,and the loudspeaker 1215 in the speaker assembly is mounted at an innerside of the front shell 1212 and faces towards a front side of the TVset. The front shell 1212, the rear shell 1213 and the frame 1214 mayserve as a casing of the speaker assembly, and the design of the casingof the speaker assembly is not needed. In certain embodiments, thecircuit module and the terminal 24 may also be mounted on the inner sideof the front shell 1212.

As shown in FIG. 4, preferably, the speaker assembly may further includea metal net cover 1216 disposed on an outer side of the front shell1212. The metal net cover 1216 can prevent the dust in the air fromentering the speaker assembly, and thus prolonging the service life ofthe speaker assembly. The loudspeaker 1215 may be rotatably mounted onthe first supporting mount 121 (not shown), such that the loudspeaker1215 generates sound towards the front side of the TV set.

In this embodiment, the loudspeaker 1215 is rotatably mounted on thefirst supporting mount 121, and through adjustment on the angle of theloudspeaker 1215, the loudspeaker keeps generating sound towards thefront side. Thus, better mid-range and treble sounds may be receiveddirectly in front of the TV set, which avoids dry sounds and ensuresbetter sound effects.

FIG. 16 is a schematic view of the structure of a TV set according to afurther embodiment of the present invention. In this embodiment as shownin FIG. 16, the structure of the TV set is similar to the structure asdescribed in the above embodiments, and the main difference lies in thatthe speaker assembly 23 is rotatably mounted at the lower portion of thefirst supporting mount 121 such that the speaker assembly 23 generatessound towards the front side of the TV set, and the first supportingmount 121 is supported on the table top through the speaker assembly 23.The structure of the portion where the speaker assembly 23 and the firstsupporting mount 121 are rotatably connected may be achieved through aminute change of the structure of the rotating shaft as described in thefirst embodiment as well as implemented in other manners, and istherefore not repeated herein.

The TV set as provided in this embodiment can achieve all the beneficialeffects of the first embodiment, which is not repeated herein.

In the present invention, the terms “first” and “second” are only forthe purpose of description, and should not be construed as indicating orimplying relative importance;

unless otherwise clearly defined and limited, the terms such as “mount”,“connect” and “fix” should be understood in a broad sense, for example,the term “connect” may refer to a fixed connection, a detachableconnection, or an integral connection. Persons of ordinary skill in theart can understand the specific meanings of the above terms in thepresent invention according to specific circumstances.

The foregoing description of the exemplary embodiments of the inventionhas been presented only for the purposes of illustration and descriptionand is not intended to be exhaustive or to limit the invention to theprecise forms disclosed. Many modifications and variations are possiblein light of the above teaching.

The embodiments were chosen and described in order to explain theprinciples of the invention and their practical application so as toactivate others skilled in the art to utilize the invention and variousembodiments and with various modifications as are suited to theparticular use contemplated. Alternative embodiments will becomeapparent to those skilled in the art to which the invention pertainswithout departing from its spirit and scope. Accordingly, the scope ofthe invention is defined by the appended claims rather than theforegoing description and the exemplary embodiments described therein.

What is claimed is:
 1. A TV set, comprising: (a) a display screenassembly; and (b) a base disposed at a lower portion of the displayscreen assembly, the base comprising a first supporting mount and asecond supporting mount, wherein a first end of the first supportingmount is rotatably connected with a back side of the display screenassembly; the second supporting mount comprises two supporting armssymmetrically disposed on two sides of the first supporting mount,wherein a first end of each of the two supporting arms is respectivelyrotatably connected with the two sides of the first supporting mount ata rotatory connection point; when the base is in a supporting state, afirst fixed angle is formed between the first supporting mount and thedisplay screen assembly, a second fixed angle is formed between thesecond supporting mount and the first supporting mount, a second end ofeach of the two supporting arms is respectively positioned at a lowerfront of the display screen assembly, and the lower portion of thedisplay screen assembly abuts the two supporting arms, wherein a secondend of the first supporting mount and the second ends of the twosupporting arms are supported on a table top, and for each of the twosupporting arms, a triangular supporting structure is formed by therotatory connection point rotatably connected with the first supportingmount, the second end of the first supporting mount, and the second endof the supporting arm; and when the base is in a retracted state, thefirst supporting mount is attached to the back side of the displayscreen assembly, and the second supporting mount is superimposed on anouter side wall of the first supporting mount.
 2. The TV set accordingto claim 1, wherein the second supporting mount is a U-shaped bracket,and the two supporting arms are two vertical arms of the U-shapedbracket, wherein a front end of each of the two vertical arms of theU-shaped bracket is respectively rotatably connected with the two sidesof the first supporting mount; and wherein when the base is in theretracted state, the first supporting mount is received in the U-shapedbracket.
 3. The TV set according to claim 2, wherein the front ends ofthe two vertical arms of the U-shaped bracket are rotatably connectedwith two sides of the second end of the first supporting mount through afirst rotating shaft.
 4. The TV set according to claim 3, wherein thefront end of each of the two vertical arms of the U-shaped bracket isprovided with a first shaft hole, and the first rotating shaft isfixedly disposed in the first shaft hole; wherein the first supportingmount is provided with a through hole corresponding to the first shafthole, and the first rotating shaft penetrates the through hole of thefirst supporting mount; wherein the first rotating shaft is fixedlyprovided with a first stop washer; and wherein a first groove isprovided on one of the first stop washer and the first supporting mount,and a first protruding block is fixedly provided on the other of thefirst stop washer and the first supporting mount near an outer edge ofthe through hole, and the first groove fits with the first protrudingblock to define a rotation angle of the U-shaped bracket.
 5. The TV setaccording to claim 4, wherein the first rotating shaft comprises athreaded segment and a connecting segment, and a cross-sectional shapeof the connecting segment is D-shaped or rectangular; wherein across-sectional shape of the first shaft hole corresponds to thecross-sectional shape of the connecting segment, and the connectingsegment is fixedly disposed in the first shaft hole; wherein the firststop washer has a mounting hole corresponding to the cross-sectionalshape of the connecting segment, and the first stop washer is fixedlymounted on the connecting segment; and wherein the first protrudingblock is embedded in the first groove, and the first stop washer and thefirst rotating shaft rotate along with the U-shaped bracket, such thatthe first protruding block defines a rotation angle of the first stopwasher, thereby defining the rotation angle of the U-shaped bracket. 6.The TV set according to claim 5, wherein the threaded segment isthreaded with a first nut.
 7. The TV set according to claim 6, wherein afirst butterfly washer is sleeved between the first nut and the firststop washer.
 8. The TV set according to claim 2, wherein each of the twovertical arms of the U-shaped bracket is respectively provided with apin shaft hole, and the lower portion of the display screen assembly isprovided with pin shafts, wherein when the lower portion of the displayscreen assembly is supported on the U-shaped bracket, each of the pinshafts is respectively inserted into a corresponding pin shaft hole. 9.The TV set according to claim 8, wherein each of the pin shafts isprovided with a rotating stem, and the display screen assembly isfurther provided with a magnet; and wherein when each of the pin shaftsis pulled out from the corresponding pin shaft hole, the magnet attractsthe rotating stem.
 10. The TV set according to claim 1, wherein the twosupporting arms are two L-shaped arms, and a front end of a vertical armof each of the two L-shaped arms is respectively rotatably connectedwith the first supporting mount.
 11. The TV set according to claim 1,wherein a mounting bracket is fixedly provided at the back side of thedisplay screen assembly, and a second rotating shaft is fixedly providedon the mounting bracket; wherein the first supporting mount is fixedlyprovided with a rotating shaft bracket sleeved on the second rotatingshaft; wherein the second rotating shaft is fixedly provided with asecond stop washer, and the second stop washer is disposed at an outerside of the rotating shaft bracket; wherein a second groove is providedon one of the second stop washer and the rotating shaft bracket, and asecond protruding block is provided on the other of the second stopwasher and the rotating shaft bracket; and wherein the rotating shaftbracket rotates along with the first supporting mount, and the secondprotruding block fits with the second groove to define a rotation angleof the first supporting mount.
 12. The TV set according to claim 11,wherein the second rotating shaft comprises a threaded segment and aconnecting segment, and a cross-sectional shape of the connectingsegment is D-shaped or rectangular; wherein a cross-sectional shape of ashaft hole of the mounting bracket corresponds to the cross-sectionalshape of the connecting segment, and the connecting segment is fixedlydisposed in the shaft hole of the mounting bracket; wherein the secondstop washer has a mounting hole corresponding to the cross-sectionalshape of the connecting segment, and the second stop washer is fixedlymounted on the connecting segment; and wherein the second protrudingblock is embedded in the second groove, the rotating shaft bracketrotates along with the first supporting mount, such that the secondprotruding block defines a rotation angle of the rotating shaft bracket,thereby defining the rotation angle of the first supporting mount. 13.The TV set according to claim 12, wherein the threaded segment isthreaded with a second nut.
 14. The TV set according to claim 13,wherein a second butterfly washer and a lock washer are sleeved betweenthe second nut and the rotating shaft bracket.
 15. The TV set accordingto claim 1, further comprising a speaker assembly disposed on the firstsupporting mount; wherein the speaker assembly is configured to generatesound towards a front side of the TV set.
 16. The TV set according toclaim 15, wherein the speaker assembly is disposed at a position near alower portion of the first supporting mount; wherein when the base is inthe retracted state, the lower portion of the first supporting mountextends beyond a lower edge of the display screen assembly, and aloudspeaker of the speaker assembly faces towards a front side of thedisplay screen assembly; and when the base is in the supporting state,the loudspeaker of the speaker assembly faces towards the front side ofthe display screen assembly, and sound waves generated by theloudspeaker are transmitted toward the front of the display screenassembly through a gap between the display screen assembly and the tabletop.
 17. The TV set according to claim 15, wherein the speaker assemblyis rotatably disposed at the lower portion of the first supportingmount, such that the loudspeaker generates the sound towards the frontside of the TV set.
 18. The TV set according to claim 15, furthercomprising a circuit module and a terminal, wherein the circuit moduleand the terminal are both disposed on the first supporting mount, andthe circuit module is electrically connected with the display screenassembly.
 19. The TV set according to claim 18, wherein the firstsupporting mount comprises a front shell, a rear shell and a frame,wherein the front shell and the rear shell are mounted on the frame, thecircuit module and the terminal are mounted at an inner side of thefront shell, and the loudspeaker of the speaker assembly is disposed atthe inner side of the front shell.
 20. The TV set according to claim 1,wherein a lower portion of the first supporting mount is provided with afoot pad.